EP0000383B1 - Pyrimido (4,5-c) pyridazines, leur utilisation dans les compositions pharmaceutiques, et procédé pour leur préparation - Google Patents
Pyrimido (4,5-c) pyridazines, leur utilisation dans les compositions pharmaceutiques, et procédé pour leur préparation Download PDFInfo
- Publication number
- EP0000383B1 EP0000383B1 EP78100331A EP78100331A EP0000383B1 EP 0000383 B1 EP0000383 B1 EP 0000383B1 EP 78100331 A EP78100331 A EP 78100331A EP 78100331 A EP78100331 A EP 78100331A EP 0000383 B1 EP0000383 B1 EP 0000383B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- formula
- compound
- optionally substituted
- phenyl ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/48—Two nitrogen atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/50—Three nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Definitions
- lower as used herein in conjunction with an alkyl, alkoxy or acyl group is indicative of the fact that such groups have from 1 to 6 carbon atoms arranged in a straight or branched chain.
- phenacyl group however is used to denote solely a C 6 H 5 COCH 2 ⁇ group.
- the above compounds of formula (II) inhibit the enzyme dihydropteroate synthetase which enables microorganisms to synthesize an essential intermediate in the production of tetrahydrofolate co-factors.
- Most of these co-factors are one-carbon adducts of tetrahydrofilic acid and they are essential metabolites in cells for the biosynthesis of purines, thymidylic acid, serine, and several other biologically important compounds.
- Man and other higher animals are unable to synthesise folic acid and therefore they have to obtain them from food which contains the required preformed folates.
- the hydrolysis of the lower acyloxymethyl group will preferably take place under alkaline conditions, for example, by using aqueous sodium hydroxide.
- the hydrolysis will be carried out at a non extreme temperature, i.e. between 10° and 100°C, and preferably at room temperature.
- the compounds of formula (VII) can be prepared preferably in situ, by condensing a 2 - amino - 4 - imino - 6 - hydrazinopyrimidine of formula (VIII), or a tautomer thereof, with an a-keto ester of formula (V).
- Humans an other animals suffering from microbial infections may be treated by administering a non-toxic effective antimicrobial treatment amount of a compound of formula (II), or preferably administering a pharmaceutical formulation comprising the said amount of a compound of formula (II) and a pharmaceutically acceptable carrier, to the infected human or other animal.
- the 3 ⁇ CH(OCH 3 )CO 2 H compound (disodium salt) was prepared in a manner similar to that of 6A from the 3 ⁇ CH(OCH 3 )CO 2 C 2 H 5 starting material, yield 69%.
- Calcd. for C 10 H 9 N 5 Na 2 O 5 C, 36.93%; H, 2.79%; N, 21.54%; Na, 14.14%. Found: C, 36.70%; H, 2.92%; N, 21.38%; Na, 14.01%.
- the reactions are followed by determining the amount of 14 C in H 2 pteroate after separation from the substrate, p-aminobenzoate-7- 14 C, by paper chromatography.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2876577 | 1977-07-08 | ||
GB2876577 | 1977-07-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0000383A1 EP0000383A1 (fr) | 1979-01-24 |
EP0000383B1 true EP0000383B1 (fr) | 1982-10-13 |
Family
ID=10280798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78100331A Expired EP0000383B1 (fr) | 1977-07-08 | 1978-07-07 | Pyrimido (4,5-c) pyridazines, leur utilisation dans les compositions pharmaceutiques, et procédé pour leur préparation |
Country Status (4)
Country | Link |
---|---|
US (6) | US4225710A (fr) |
EP (1) | EP0000383B1 (fr) |
JP (1) | JPS5419996A (fr) |
DE (1) | DE2862102D1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4225710A (en) * | 1977-07-08 | 1980-09-30 | Burroughs Wellcome Co. | Pyrimido(4,5-c)pyridazines |
EP0000541B1 (fr) * | 1977-07-20 | 1982-02-03 | The Wellcome Foundation Limited | 1H-Pyrimido-(4,5-c)-1,2-diazépines, méthodes pour leur préparation et compositions les contenant; leur utilisation comme intermédiaires pour transformations hétérocycliques. |
US4260758A (en) * | 1979-09-17 | 1981-04-07 | Burroughs Wellcome Co. | Pyrazolo (3,4-d) pyrimidines and methods of making |
US5365624A (en) * | 1993-03-02 | 1994-11-22 | Berns Michael S | Apparatus for automatic and simultaneous caring for teeth and gums |
CA2164859C (fr) * | 1993-06-10 | 2005-11-29 | Gary Karlin Michelson | Appareil et methode pour l'insertion d'implants dans la colonne vertebrale |
MXPA01000973A (es) * | 1998-08-03 | 2002-06-04 | Epigenesis Pharmaceuticals Inc | Un nuevo agente analgesico antiinflamatorio y de cicatrizacion de heridas. |
GB2353330B (en) | 1999-08-04 | 2003-05-28 | Pet Mate Ltd | Pond pump |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2130358A (en) * | 1937-04-07 | 1938-09-20 | Eastman Kodak Co | Azo compounds and process for coloring therewith |
US2328956A (en) * | 1942-08-18 | 1943-09-07 | Gen Electric | Diazine derivatives |
US2435203A (en) * | 1942-08-26 | 1948-02-03 | Gen Electric | Acylhydrazino amino derivatives |
DK113716B (da) * | 1960-07-30 | 1969-04-21 | Takeda Chemical Industries Ltd | Fremgangsmåde til fremstilling af 1-[pyrimidinyl-(2)]-guanazolforbindelser eller salte deraf. |
US3382247A (en) * | 1965-11-01 | 1968-05-07 | Upjohn Co | 6-amino-1, 2-dihydro-1-hydroxy-2-imino-4-phenoxypyrimidines |
US3464987A (en) * | 1966-02-21 | 1969-09-02 | Upjohn Co | 1,2-dihydro-1-hydroxy-2-imino-6-(lower alkyl)pyrimidines |
US3947442A (en) * | 1969-11-20 | 1976-03-30 | The Sherwin-Williams Company | Method for producing heterocyclic acid anhydrides and pyrimidinediones |
US3998827A (en) * | 1971-04-07 | 1976-12-21 | The Upjohn Company | 6-amino-4-(substituted piperidino)-1,2-dihydro-1-hydroxy-2-iminopyrimidines |
DE2862055D1 (en) * | 1977-07-08 | 1982-11-11 | Wellcome Found | Pyrimido (4,5-c)pyridazines, compositions containing them and processes for their preparation |
US4225710A (en) * | 1977-07-08 | 1980-09-30 | Burroughs Wellcome Co. | Pyrimido(4,5-c)pyridazines |
EP0000541B1 (fr) * | 1977-07-20 | 1982-02-03 | The Wellcome Foundation Limited | 1H-Pyrimido-(4,5-c)-1,2-diazépines, méthodes pour leur préparation et compositions les contenant; leur utilisation comme intermédiaires pour transformations hétérocycliques. |
US4235909A (en) * | 1979-04-19 | 1980-11-25 | Eli Lilly And Company | Octahydro-2H-pyrrolo[3,4-g]quinolines |
-
1978
- 1978-07-07 US US05/922,545 patent/US4225710A/en not_active Expired - Lifetime
- 1978-07-07 EP EP78100331A patent/EP0000383B1/fr not_active Expired
- 1978-07-07 JP JP8286978A patent/JPS5419996A/ja active Granted
- 1978-07-07 DE DE7878100331T patent/DE2862102D1/de not_active Expired
-
1980
- 1980-05-13 US US06/149,255 patent/US4329362A/en not_active Expired - Lifetime
- 1980-05-27 US US06/153,058 patent/US4302587A/en not_active Expired - Lifetime
- 1980-05-27 US US06/153,059 patent/US4323679A/en not_active Expired - Lifetime
- 1980-05-27 US US06/153,060 patent/US4303790A/en not_active Expired - Lifetime
- 1980-05-27 US US06/153,061 patent/US4303789A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4302587A (en) | 1981-11-24 |
US4329362A (en) | 1982-05-11 |
DE2862102D1 (en) | 1982-11-18 |
JPS5419996A (en) | 1979-02-15 |
US4225710A (en) | 1980-09-30 |
US4303789A (en) | 1981-12-01 |
JPS6339597B2 (fr) | 1988-08-05 |
EP0000383A1 (fr) | 1979-01-24 |
US4323679A (en) | 1982-04-06 |
US4303790A (en) | 1981-12-01 |
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Legal Events
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